Patent · US Expired

Dual-circuit pressure control valve for hydraulic brake systems

US4354712A · kind A · utility

1Cited by

3References

37Claims

0Family size

Assignee

ITT Industries · US

Inventors

Hans-Dieter Reinartz · Frankfurt am Main, DE
Bernd Schopper · Frankfurt, DE
Peter Tandler · Rockenhausen, DE
Derek Lowe · Königstein, DE

Key dates

Filing date	Jan 23, 1981
Grant date	Oct 19, 1982
Priority date	—
Expiry date	Jan 23, 2001

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T17/226
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

Dual-circuit pressure control valves are known in which the control pistons are acted upon by a common control force. A preload distributor constructed as beams of balance to compensate for differences in the control behavior of the two control valves due to manufacturing tolerances have not provided the desired compensation. Therefore, according to the present invention an improved compensation arrangement is provided in the form of a compensating piston which is subjected to the outlet pressures of the two brake circuits.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.